2-Fluorophenyl isocyanate → (S)-Methyl 1-(3-(4-(3-(2-fluorophenyl)ureido)phenyl)isoxazole-5-carbonyl)pyrrolidine-2-carboxylate

Participants

Reaction Steps

The title compound was prepared according to the procedure as set forth in example 151, except that 1-fluoro-2-isocyanatobenzene was used in place of 1-fluoro-3-isocyanatobenzene and (S)-methyl 1-(3-(4-aminophenyl)isoxazole-5-carbonyl)pyrrolidine-2-carboxylate was used in place of methyl 2-(3-(4-aminophenyl)isoxazole-5-carboxamido)-3-methylbutanoate to yield 53% of the title compound. MS (ES+): m/z 453 (M+1); 1H NMR (DMSO-d6, 300 MHz) δ: 9.35 (s, 1H), 8.65 (s, 1H), 8.15 (m, 1H), 7.92 (d, 2H), 7.66 (s, 1H), 7.6 (d, 2H), 7.26 (m, 1H), 7.16 (m, 1H), 7.04 (m, 1H), 3.92 (t, 1H), 3.67 (s, 3H), 3.65 (m, 1H), 2.29 (m, 1H), 1.97 (m, 2H), 1.24 (m, 2H).

Provenance & Evidence